In Relation to Humanity's Global Spread, the 'Replacement Hypothesis' Describes

question 25

Multiple Choice

In relation to humanity's global spread, the 'replacement hypothesis' describes the idea that groups that left Africa early to occupy territory on other continents (early immigrants) were:

• A) killed off by diseases introduced by later immigrants
• B) killed off by later immigrants through acts of violence
• C) driven out of the new territory by later immigrants, who then took over the territory
• D) unable to adapt to the new environment and so died off and left it open for new immigrant groups who arrived later on and were somehow more successful at adapting
• E) All of the answers are correct

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Definitions:

Earth's Surface

The outermost layer of the Earth, consisting of the crust and parts of the upper mantle that interact directly with the biosphere and atmosphere.

Minerals

Naturally occurring, inorganic solids with a definite chemical composition and a crystalline structure, forming the building blocks of rocks.

Minerals Weather

The process of breaking down or alteration of minerals in rocks by physical, chemical, or biological processes at or near the earth's surface.

Bowen's Reaction Series

A sequence that describes the order in which minerals crystallize from cooling magma according to their chemical composition and temperature.